GESTRA NRR 2-52 - What to Do in the Event of System Malfunctions; Checking Installation and Function; Taking the NRR 2-52, NRR 2-53 out of Service; Taking out of Service URB 55

64 NRR 2-52, NRR 2-53, URB 55 - USA- Installation & Operating Manual - 850698-00
What to do in the event of system malfunctions
Checking installation and function
When you have corrected system malfunctions, perform a function test as follows.
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Check installation and function
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Check settings
In the event of malfunctions or errors that cannot be corrected with the aid of this Instal-
lation & Operating Manual, please contact our service center or authorized agent.
Taking the NRR 2-52, NRR 2-53 out of service
1. Switch off the supply voltage and switch off the voltage to the equipment.
2. Check that the equipment is not carrying voltage.
3. Unscrew and pull off the upper and lower terminal strips, see Fig. 10 A; B
4. Release the slider holder on the base of the equipment and detach the level controller from the
support rail.
Taking out of service URB 55
1. Switch off the supply voltage and secure so that it cannot be turned on again.
2. Unplug the mains connector from the equipment.
3. Unplug all plug and socket connections.
4. Unscrew the screws and remove the retaining clips.
5. Carefully push the unit out of the cutout in the door of the control cabinet.